Term ends Jun 24, 2028 · High confidence
20-year base term ends Jan 29, 2027
Held by Denso Corporation and Nippon Soken, Inc.
Filed Jan 29, 2007 as application 11/699,075 · Granted Aug 10, 2010
Base term plus 512 days of patent term adjustment (USPTO delay)
Today
2007
2028
Clock starts
Jan 29, 2007
Jan 29, 2007
Term ends
Jun 24, 2028
Jun 24, 2028
Granted
Aug 10, 2010
Aug 10, 2010
base term
patent term adjustment
fee events
Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
512
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
3 of 3
Maintenance fees paid
Three maintenance fees fall due, at 3.5, 7.5 and 11.5 years from grant. This counts the ones the record shows paid.
10
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
This patent's term runs 512 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. Confidence: High. from the record
How we calculated this date
One row per rule, each showing its own input and what it did to the date. A step we could not verify says so instead of resolving itself.
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Jan 29, 2007, when this application, 11/699,075, was filed | Jan 29, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +512 days, USPTO patent term adjustment record | Jun 24, 2028 | High confidence |
| Terminal disclaimer cap | None on record | no cap applied | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jun 24, 2028 | High confidence |
This family
| US 7,773,399 | this patent Jun 2028 | Jun 2028 |
| US 8,010,257 | Lapsed on the fee record Aug 2023 | Aug 2023 |
| Application 11/808,772 | Abandoned not computed | not computed |
| US 7,746,670 | In force Jul 2028 | Jul 2028 |
| US 8,074,444 | Lapsed on the fee record Dec 2023 | Dec 2023 |
| US 8,536,872 | Lapsed on the fee record Sep 2025 | Sep 2025 |
| US 8,451,091 | In force no later than Nov 2031 | no later than Nov 2031 |
| Application 12/731,603 | Abandoned not computed | not computed |
8 of 10 applications in this family shown, earliest filings first. The applications whose file history this site holds. The family may have others.
Assignments
Assignment documents as recorded at the USPTO, oldest first, with the reel and frame each was recorded at. A recorded assignment is a filed document, not a statement of current ownership, and the absence of a later one is not evidence that the last one still stands.
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Feb 27, 2007 reel/frame not recorded | Nakamura, Kimikazu; Yamashita, Tsuyoshi; Hayashi, Yuji | Denso Corporation | Assignment of Assignor's Interest |
| Feb 27, 2007 reel/frame not recorded | Nakamura, Kimikazu; Yamashita, Tsuyoshi; Hayashi, Yuji | Nippon Soken, Inc. | Assignment of Assignor's Interest |
| Feb 27, 2007 Reel 18977, frame 71 | Nakamura, Kimikazu; Yamashita, Tsuyoshi; Hayashi, Yuji | Denso Corporation; Nippon Soken, Inc. | Assignment of Assignor's Interest |
Sources
Google Patents · The patent document at USPTO · Assignment records at USPTO
USPTO account required: This application in Patent Center · USPTO's maintenance fee lookup
Maintenance fee events come from USPTO's own fee records. Its fee lookup asks for the patent number and the application number.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Jun 2028
Term ends Jun 24, 2028. No further fees fall due before then
Note
The 512 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
7
later US patents cite this one
That is below the median of utility patents granted in 2010 in our data, the only group it is compared against.
How we rank
Every date shows its work: the base term, any term adjustment or extension, any disclaimer cap, and the maintenance fee record, each with a confidence tier. How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.